TROUBLESHOOTING HINTS
1. The bell does not ring.
NG
When the PAGE SW of the
base is pressed, does the
ringer on the handset ring?
OK
NG
When the TEL SG is joined
with the base to make bell
signal, is there pulse wave
at Pin 4 of IC4?
NG
OK
OK
Is there pulse wave at
pin 59 of IC5?
Check IC5 and its
peripheral circuit.
See 2. The bell does not
ring & page does not ring.
Check IC4 and TEL network
circuit.
Check R62, R65 and C41.
Deletion of the Caller ID memory
To delete the Caller ID memory in the EEPROM, proceed with the following process:
1) Set the TONE/PULSE switch to TONE position.
2) While pressing the PAGE button, plug the AC power adapter into the base. Keep pressing the PAGE button for more
than 2 seconds. CHARGE LED will blink rapidly.
Summary of Contents for FT-8808
Page 1: ...SERVICE MANUAL PUBLISHED IN JAPAN Oct 1998 FILE NO 2B0 9810 FT 8808 CORDLESS TELEPHONE ...
Page 10: ... 9 BLOCK DIAGRAMS Base Main ...
Page 11: ... 10 Base RF ...
Page 12: ... 11 Handset Main ...
Page 13: ... 12 Handset RF ...
Page 14: ...SCHEMATIC DIAGRAMS Base Main 13 14 ...
Page 15: ...Base RF 15 16 ...
Page 16: ...Handset Main 17 18 ...
Page 17: ...Handset RF 19 20 ...
Page 34: ... 37 ELECTRICAL PARTS LOCATION Base Main ...
Page 35: ... 38 Base RF ...
Page 36: ... 39 Handset Main ...
Page 37: ... 40 Handset RF ...
Page 38: ... 41 WIRING DIAGRAM Handset ...
